change from cleanup to cleanupSpec for BufferedCsvWriterTest

Author: danielfeismann

CHANGELOG.md

@@ -25,6 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Use nio paths instead of strings for file path [#723](https://github.com/ie3-institute/PowerSystemDataModel/issues/723)
 - Data source will throw an exceptions instead of returning an empty optionals [#707](https://github.com/ie3-institute/PowerSystemDataModel/issues/707)
 - Improving `ValidationUtils` [#758](https://github.com/ie3-institute/PowerSystemDataModel/issues/758)
+- CleanUp `BufferedCsvWriterTest` only after all tests are completed [#809](https://github.com/ie3-institute/PowerSystemDataModel/issues/809)
 
 
 ## [3.0.0] - 2023-02-16

src/test/groovy/edu/ie3/datamodel/io/csv/BufferedCsvWriterTest.groovy

@@ -8,7 +8,6 @@ package edu.ie3.datamodel.io.csv
 import edu.ie3.datamodel.exceptions.FileException
 import edu.ie3.datamodel.exceptions.SinkException
 import edu.ie3.util.io.FileIOUtils
-import org.apache.commons.io.FilenameUtils
 import spock.lang.Shared
 import spock.lang.Specification
 
@@ -23,7 +22,7 @@ class BufferedCsvWriterTest extends Specification {
     tmpDirectory = Files.createTempDirectory("psdm_csv_buffered_writer_")
   }
 
-  def cleanup() {
+  def cleanupSpec() {
     FileIOUtils.deleteRecursively(tmpDirectory)
   }